Refining of gasoline-like products of hydrocarbon oil conversion



Patented Apr. 12, 1932 UNITED STATES PATENT OFFIICE JACQUE C. MORBELL,OF CHICAGO, ILLINOIS, ASSIGNOR TO UNIVERSAL OIL PBOLUC'IS COMPANY, OFCHICAGO, ILLINOIS, A CORPORATION OF SOUTH DAKOTA.

REFINING OF GASOLINE-LIKE PRODUCTS 01'! HYDROCARBON OIL CONVERSION V INo Drawing. Continuation of application Serial No.

October 31,' 1929. Serial No. 403,913.

produce substantially water white, stable products which will satisfycommercial requirements.

The present invention specifically contemplates the addition of sulphurdioxide to sulphuric acid for use as a refining agent. I am well awarethat heretofore petroleum oils" have been refined by using sulphuricacid as well as the use of liquified sulphur-dioxide, but I believe I amthe first to combine sulphur dioxide with sulphuric acid and utilize theproduct thus obtained as a refining agent.

The action of sulphuric acid upon certain types of cracked oils is suchas to produce 11ndesirable color-forming and odor-forming substances inaddition to its refining action. The presence of sulphur dioxideprevents this action.

p the sulphuric acid. It is not necessa As a specific example of thepreparation of the reagent made use of in this invention, sulphurdioxide (a gas) is passed into the body of sulphuric acid until thelatter is sat- -requiring no further distillation and 74,398, filedDecember 9, 1925. This application filed.

able to supplementthe refining action of the sulphuric acid and sulphurdioxide by also separately subjecting the oil to the action of otherrefining reagents, for instance, plumbite, copper salts in solutionearthy adsorbents, and the like, and the invention is not limited to anyparticular order or succession of use for these refining reagents itbeing within the determination of the skilled operator to subject theoil to these reagents in proper succession to secure the mostadvantageous results in an economical manner.

The invention is more particularly directed to the refining of thoseoverhead condensed products having an end boiling point roduced as adirect product of the 'crac 'ng process, as well as those lightergravity overhead products which require further distillation.

The following are the claims:

1. The method of refining cracked hydrocarbon distillates whichcomprises subjecting the same to the action of sulphuric acid saturatedwith sulphur dioxide.

which comprises subjecting the same to the action of sulphuric acidsaturated with sulphur dioxide.

In testlmony whereof I aifix my signature.

J ACQUE O. MORRELL.

acid with sulphur dioxide in order to obtain the beneficial efl'ectsowing to its presence.

With certain types of oils, the sulphuric acid combined with sulphurdioxide ma be used as a sole refining agent, the traces of the acid, ofcourse, being removed with alkali, if desirable.

With other types of-oils, it maybe advis 76 2. The method of refininghydrocarbon oil

